1. What is DNA?
- Deoxyribonucleic acid, a molecule that carries genetic information, found in the nucleus of cells.
2. How is DNA organized inside the cells?
- The two parallel strands in each DNA are twisted around each other to form a double helix. A molecule of DNA is wrapped around proteins to form a chromatin thread. Chromatin threads are tightly coiled into chromosones inside the cell nucleus.
3. What is gene?
- A small segment of DNA that contains information (instruction) to make a single protein. Each protein is responsible for determining a particular characteristic of an organism.
4. What is the basic unit of DNA and what is it made up of?
- The basic unit of DNA is called nucleotide. Each nucleotide is made up of a sugar called deoxyribose, a phosphate group, and anitrogen-containing base.
5. State the rules of base pairing.
- Adenine (A) always pairs with Thymine (T).
- Cytosine (C) always pairs with Guanine (G).
- (A) and (T) are complementary bases.
- (C) and (G) are complementary bases.
Complete the assignment in your respective group pages.
Assignment 2:
1. Explain the process of transcription.
DNA must be unziped to expose the template DNA strand.
The message of the gene on the template DNA must be copied into a RNA molecule called messanger RNA [mRNA].
This copying proccess in known as transcription.
2. Explain the process of translation.
After transcription, mRNA detatched itself from DNA template and carries the message out of the nucleus into cytoplasm.
The DNA molecule revert back into its duble helix structure.
A ribosome helps to convert, (translate) the message in the mRNA into a protein molecule.
1. What is DNA?
- Deoxyribonucleic acid, a molecule that carries genetic information, found in the nucleus of cells.
2. How is DNA organized inside the cells?
- The two parallel strands in each DNA are twisted around each other to form a double helix. A molecule of DNA is wrapped around proteins to form a chromatin thread. Chromatin threads are tightly coiled into chromosones inside the cell nucleus.
3. What is gene?
- A small segment of DNA that contains information (instruction) to make a single protein. Each protein is responsible for determining a particular characteristic of an organism.
4. What is the basic unit of DNA and what is it made up of?
- The basic unit of DNA is called nucleotide. Each nucleotide is made up of a sugar called deoxyribose, a phosphate group, and anitrogen-containing base.
5. State the rules of base pairing.
- Adenine (A) always pairs with Thymine (T).
- Cytosine (C) always pairs with Guanine (G).
- (A) and (T) are complementary bases.
- (C) and (G) are complementary bases.
Complete the assignment in your respective group pages.
Assignment 2:
1. Explain the process of transcription.
2. Explain the process of translation.